1221444131341 has 16 divisors (see below), whose sum is σ = 1416882032640. Its totient is φ = 1031245150320.

The previous prime is 1221444131333. The next prime is 1221444131377. The reversal of 1221444131341 is 1431314441221.

It is not a de Polignac number, because 1221444131341 - 2³ = 1221444131333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221444131641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6320256 + ... + 6510646.

It is an arithmetic number, because the mean of its divisors is an integer number (88555127040).

Almost surely, 2^{1221444131341} is an apocalyptic number.

It is an amenable number.

1221444131341 is a deficient number, since it is larger than the sum of its proper divisors (195437901299).

1221444131341 is a wasteful number, since it uses less digits than its factorization.

1221444131341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204144.

The product of its digits is 9216, while the sum is 31.

Adding to 1221444131341 its reverse (1431314441221), we get a palindrome (2652758572562).

The spelling of 1221444131341 in words is "one trillion, two hundred twenty-one billion, four hundred forty-four million, one hundred thirty-one thousand, three hundred forty-one".